Athens City-County Health Department issued the following announcement on February 16.
The correct way to measure blood pressure at home includes: No food or drink for 30 minutes beforehand, no talking, arm resting at chest height, cuff against bare skin, back is supported, and feet flat on the floor
Find more information on measuring your blood pressure at home here: https://www.cdc.gov/bloodpressure/measure.htm#Howmeasure
Original source can be found here.